We spend a ton of time investing in things that numb us to the reality of how short life is―things like scrolling the internet for hours on end or watching TV to the point of restlessness. Entertainment is fun, but how much time do we save for ourselves? How often do we set aside dedicated time for personal development, where we are learning and growing in a way that defines our existence?

To be well rounded, find some time to invest in yourself. These 15 motivating quotes are a great way to start thinking about who you want to become.